Category: Tag High-Quality

Jammers are used in various fields and can be easily ordered online. Especially in portable GPS signal jammers, the lowest online price is only a few tens of yuan. Some people think that these products are beneficial, how VIP personnel can prevent illegal tracking of these products, some high-quality jammers can prevent owners from monitoring their work, prisons use jammers to prevent criminals from contacting the outside world, and test rooms use signal jammer, The device prevents candidates from using high-tech tools to cheat … Usually, jammers are very versatile.

Will it affect WIFI when using cell phone signal jammer?

In our lives, we often use cell phone signal jammer, and when we use mobile phone signal jammers, it is inevitable that there will be such a question: Will using mobile phone signal jammers block wifi? Let’s learn about it with Jammer-mart:

buy signal jamming device

The shielding frequency band of mobile phone signal jammer is generally:

CDMA frequency band transmission frequency 869-894MHz

GSM frequency band transmission frequency 925-960MHz

DCS frequency band transmission frequency 1805-1880MHz

PHS frequency band transmission frequency 1900-1990MHz

WIFI transmission frequency 2400-2485MHZ

4G transmit frequency 2300-2390MHZ

4G transmit frequency 2555-2565MHZ

If the jammer contains 2400-2485MHZ, then 2.4G wifi will be shielded. If the jammer contains 5.8G shielding frequency band, it will shield 5.8G wifi frequency band. Generally, the jammer does not include 5.8G Wifi frequency band. Can not shield the 5.8G wifi frequency band.

USS Boxer used electronic interference to take out Iranian drones, Pentagon sources say amphibious assault ship

The USS Boxer deployed electronic measures to dismantle a drone the US says was operated by the Iranian military, according to Pentagon sources familiar with the situation. The Navy says the drone was wrecked on the Strait of Hormuz on Thursday after it approached the ship and repeated warnings went unheeded.

Iran has denied the US claims, stating that all of its drones will be considered – and that the US ship may have accidentally shot down one of its own military drones.

U.S. Department of Defense officials, who were not empowered to speak publicly, said the drone was one of several threats to the boxer as he drove through the narrow waterway near the Iranian coast. It is said that at least one Iranian helicopter and several fast boats drove towards the ship on Thursday morning. The actions prompted the boxer to send a helicopter, which then flew side by side with the Iranian plane to repel him.

The boats eventually followed radio warnings to break contact, but the drone headed for the boxer instead of turning, the sources say. His presence was seen as a potential threat to flight operations aboard the amphibious assault ship, which carries a number of helicopters, as well as Osprey tiltrotor aircraft and a handful of fighter jets.

There were also concerns that the drone could pose a direct threat: in recent months, Iran-backed Houthi rebels have been using drones to drop explosives on targets in both Yemen and Saudi Arabia. According to a Pentagon source, the drone was unarmed in Thursday’s encounter.

The first US statements about the incident with the boxer did not contain any detailed information about the crash of the drone. On Friday, a Pentagon official clarified that the boxer was using electronic jammer measures to turn off the drone. The officer did not provide details in order not to disclose information about the ship’s capabilities.

wireless signal blocker

The news site Military.com states that a new Marine Corps anti-drone system was responsible for the Iranian drone crash, although the military did not confirm the report. USNI News notes that the Navy previously announced that the Marines were operating the jamming system on the deck of a US ship. USNI News described the weapon as one of a new series of “non-kinetic systems” that can cause a drone to crash.

President Trump first announced the crash on Thursday afternoon, saying “The drone was destroyed immediately” after closing within about 1,000 meters of the boxer and ignoring the request to resign.

Shortly after Trump’s testimony, Pentagon spokesman Jonathan Hoffman gave further details, saying a drone approached the Navy ship at around 10 a.m. local time while the ship was in international waters and on an “inbound road transit” von Hormuz “sailed. “”

However, on Friday, Trump said the U.S. ship shot down the drone, contradicting Pentagon officials’ report that the boxer was using jamming features. “No doubt no,” Trump said in the Oval Office, according to a White House pool report. He added, “We shot it down.”

When asked if he was concerned about the possibility of a major clash with Iran in the Strait of Hormuz, the pool report quoted Trump as saying, “No, not at all. … We hope they don’t do anything stupid about them. ” When they do that, they pay a price no one has ever paid before. ”

Also on Friday, a senior Trump administration official said the U.S. government had evidence that the boxer destroyed the drone and said more information about the shutdown would come from the Pentagon.

“We have very clear evidence, the Department of Defense issued its statement on the boxer’s actions,” the official told reporters on Friday. “The Iranians don’t have a great story with the truth. We are very confident in the president’s announcement.”

When asked if the Trump administration would take further action against Iran, the official said the US was ready to defend itself.

“It was your drone that approached our ship,” said the officer, adding, “If you keep doing this. If you fly too close to our ships, you will be shot down.”

US military officials say Iranian helicopters and drones often flew near US ships as they crossed the Strait of Hormuz between the Persian Gulf and the Gulf of Oman.

In an incident that began in August 2017, according to these officials, a US ship was harassed by an Iranian drone that flew near the ship during night operations. No shots were fired, but the encounter was classified as “clearly unsafe”.

Mobile phone signal jammer installed in Science and Technology Museum of Mianyang City, Sichuan Province

The Mianyang Science and Technology Museum is located on the banks of the picturesque Furong Creek, echoing the Fule Mountain Scenic Area, the Chinese Scientist Sculpture Park and the Mianyang Museum under construction. In recent years, as more and more people continue to understand technology, Mianyang Science and Technology Museum has also become a popular place for many citizens to bring their families to visit during holidays. In order to maintain the orderly management and quiet environment of the Science and Technology Museum, and create a comfortable and harmonious atmosphere for the visitors, Mianyang Science and Technology Museum recently signed a cell phone signal jammer installation agreement with Chengdu Saiyue Communication Technology Co., Ltd. The Chengdu Saiyue Company is entrusted to effectively shield the wireless signals in some areas of the Science and Technology Museum, so that visitors can understand the charm of technology in a quiet and harmonious atmosphere.

5G frequency jammer for sale

According to the requirements of the science and technology museum, the personnel surveyed and measured the areas that need to be shielded, and communicated with the person in charge of the science and technology museum in detail to confirm, and finally submitted a complete set of mobile phone signal jammer system installation solutions and was approved . After intensive and orderly construction, the signal shielding system of Chengdu Saiyue Company’s own brand “Saiyuetong” successfully realized the wireless signal shielding in the designated area of the Science and Technology Museum, achieved the expected effect and passed the test and acceptance of the Mianyang Science and Technology Museum.

The role of drones in future warfare, what about drone jammers?

War is entering the era of drones faster than expected, and the “high altitude danger” of civilian drones is increasing, except for large drones like the Global Hawk. At home and abroad, the phenomenon of “black flying” and “flying flying” has emerged one after another, which has attracted more and more attention to security monitoring issues such as civil aircraft taking off and landing, eavesdropping in secret areas. In fact, the increasing number of unmanned aerial vehicle (UAV) crimes makes people pay more and more attention to the management of unmanned aerial vehicle (UAV).

drone signal jammer

The drone signal jammer market is developing rapidly, and UAVs are now playing a role in aerial photography, mapping, delivery, rescue and other fields. However, “problems” followed. These problems affected the order of aviation and the penetration of sensitive areas… These phenomena even led to the rapid development of the derivatives industry and unmanned aerial vehicles (uav). Equipment and service providers, unmanned aerial vehicle (UAV) “predators” have also benefited a lot from it, which brings huge development opportunities to unmanned aerial vehicle (UAV) companies.

The Chinese military has been equipped with the ability of the US military to use drones to interfere with radiation weapons. Large electronic warfare equipment can even destroy and capture enemy large drones. For example, Russia’s “automatic” countermeasure energy response system has some powerful functions that the outside world has not yet realized. The radar system can suppress 50 aircraft at an altitude of 30,000 meters, and can also conduct electronic attacks on fighter jets and unmanned aircraft within a radius of 100 square kilometers. In October 2011, Iran captured the US RQ-170 stealth drone “outpost” using an electronic countermeasure system provided by Russia.

Signal-oriented approach to signal congestion

Signal interference is an increasingly popular means for criminals to steal vehicles and cargoes, with truck hijackings costing the country an estimated R3 billion in 2015.

In almost every reported hijacking case, the truck’s tracking signal was not available because the suspects involved had used signal jammers.

The scourge of signal congestion in South Africa was brought to the public through carte blanche exposés and the much-noticed blocking of cellular communications during the “State of the Nation” address in Pretoria in 2015. The latter event, in particular, helped create greater public awareness and got companies like Ctrack to innovate and fight back.

However, signal jammer continue to be used in South Africa as they are easy to obtain and more affordable. As a result, hijackers today employ a wide range of jamming systems and devices, some of which are large and cumbersome and some of which are small and portable. This is despite the fact that possession and / or use of signal jamming devices is illegal under ICASA in South Africa.

High tech Phone Wifi interceptor

Big or small, these systems typically prevent telematics devices from transmitting their location to tracking service providers.

Hein Jordt, CEO of Ctrack Fleet Management Solutions: “Hijackers use a variety of jamming systems to block tracking devices from communicating over cellular networks or satellite. Once blocked, they usually hijack the vehicle or collaborate the driver together to take it to a place where they can unload their valuable cargo. ”

Transport and logistics companies know it is important to protect both trucks and their cargo from theft. According to the South African Insurance Crime Bureau, truck hijackings are primarily about the goods being transported, with FMCG products such as tobacco currently in high demand. Either way, the fact is that the majority of the trucks are hijacked for their loads.

Fleet owners and operators need a total transportation solution that combines fleet management with the ability to detect signal congestion. The good news is that today there is a solution that can provide both trucks and trailers with effective stowage protection.

To attenuate signal jammers, alternate frequencies to those that are being blocked must be used. This is where the DSSS (Direct Sequence Spread Spectrum) technology used by Ctrack comes into play. DSSS does not use any other format like GSM to communicate. Instead, it transmits messages with a bandwidth that exceeds the bandwidth required by the message signal.

This spreading of the transmitted signal over a wider bandwidth makes the resulting broadband signal appear as a noise signal that allows greater resistance to intentional and unintentional interference. DSSS is also designed to carry signals from difficult radio frequency ranges and can penetrate through concrete, making it ideal for urban, retail and financial institutions environments.

In March, Ctrack announced that the interfering signal detection solution would be part of a combined fleet management package. “We are now able to offer our customers the option of installing a gsm jammer fault detection module as part of their fleet management system to ensure continuous visibility and to combat vehicle theft,” said Jordt.

With the fleet management component, fleet owners can monitor driver behavior such as B. Monitor hard driving, accelerating, braking, cornering and driving too fast. Significant fuel and maintenance costs are also saved by monitoring factors such as engine performance and fuel consumption.

Example of installation of UAV countermeasure equipment by cultural relics protection unit

UAV “black flying” harm

There are blind spots in the supervision of drones in my country, and the large-scale use of drones brings hidden dangers to public safety. Drones that were originally used for legal purposes are increasingly being used for criminal purposes. The public has become increasingly aware of the harm that drones may cause. UAVs can smuggle drugs; UAVs can spy on privacy/technology; UAVs can affect civil aviation – close to collisions; UAVs may appear in sensitive areas, key locations, cultural heritage protection units and government facilities; UAVs may even Can shoot automatically…

Because the intrusion of drones has brought great harm to everyone’s lives, many units have begun to install drone countermeasures. Let’s take a look at this fixed drone counter independently developed by Texin Electronics. Control the efficiency of the equipment.

anti uav jammers remote control

On September 20, 2019, Shenzhen Texin Electronics installed a set of fixed drone signal jammer in the cultural relics protection unit of Zunyi City, Guizhou. The interference range of the current frequency hopping aircraft on the market is more than 1 km, and the interference frequency band controls 2.4G and 5.8. G is positioned at 1.5G to achieve the effect of driving away the forced landing. The 1.5km drone cannot fly into the cultural relic unit.

How to know the shielding range of indoor mobile phone signal jammer?

Many customers call and say that I need a cell phone signal jammer that can shield a radius of 50 meters, an interval of 500 meters, and a radius of one kilometer. It also needs to be shielded by China Mobile, China Unicom and China Telecom. Is there a problem with the customer’s request? No problem, and a specific interval requirement is given, but can it be completed? The answer is that it is more difficult to achieve. Why is it more difficult to achieve? Isn’t the signal jammer’s parameters marked with its own shielding interval, can it be done if you put a few more units according to this interval? In fact, it is not the case, the customer is not wrong, but they don’t know the signal jammer The shielding plan is not a fixed value. How to understand it? Texin Electronics will give you an explanation.

The signal jammer scans the low-end frequency to the high-end of the channel at a certain speed during the operation process. This scanning speed can constitute garbled interference in the message signal received by the mobile phone, causing the mobile phone to fail to detect the normal microwave signal data announced from the base station , Make the mobile phone unable to establish the connection with the base station within a certain plan, to achieve the purpose of shielding the mobile phone signal.

high power signal jammer

Simply speaking, the frequency announced by the mobile phone signal jammer disturbs the mobile phone to receive the frequency of the base station. The jammer and the base station are destined to be a competition connection. If the transmission power of the signal jammer is less than the channel that the base station transmits to the mobile phone in the environment at that time Power, then the jammer will not be able to shield, only the power of the signal jammer is greater than the power delivered by the base station to the mobile phone in order to effectively shield. Therefore, any shielding device used in different signal environments will show different shielding intervals, and mobile, China Unicom and telecommunications will be different, because the base station density, base station orientation and base station power built by these three operators cannot be the same of.

In other words, how many meters the mobile phone signal jammer can shield is not only related to its own transmission power, but also to the distance between the base stations in the use environment (base stations are not limited to large-scale transmission towers built on the ground, but also buildings. The signal expansion antenna on the top and the signal expansion and dispersion made in some buildings), another important factor is obstacles, if it is a metal material, it will directly block; if it is a solid wall of reinforced concrete, it will be less attenuated after penetration 10 times; if it is wood board or glass material, the attenuation after penetration is relatively small.

So next time there are customers who say how many meters apart they need to be shielded, they must ask about the distance between the base stations in the environment, and whether they are used indoors or outdoors, whether they need to penetrate walls, etc. Customers can contact us to learn about the use of signal jammers. Only by understanding these can they better choose the appropriate signal jammer for customers.

How to visualize the interference of the wi-fi signal has become the norm as a result?

A wifi jammer sends a predefined white noise signal in specific bandwidths, which interrupts all wifi / bluetooth communication. Our jamming units can be programmed to jam any number of discrete frequencies within the limits of their RF capabilities. For basic wifi jamming systems, the effective disturbance radius is approximately 20 meters.

Jammer device also include Wi-Fi jammers and cell phone jammers, which can prevent your mobile phone from receiving or making calls, emails, and text messages. They can also prevent your Wi-Fi enabled device from connecting to the Internet for multiple operations, prevent you from receiving exact positioning signals with the use of GPS, and prevent you from being spotted by a first responder in an emergency.

2G 3G 4G 5G cell signal jammer

Advances in electronic warfare are one of the key elements guiding the development of autonomous systems for the armed forces. Right now, drones are waging electronic warfare against cellular communications, but it’s not hard to imagine the same doctrines being applied with new technologies. In this scenario, it’s easy to imagine other vehicles turning into jamming machines on future battlefields … and maybe even today.

Deauthentication attacks, or more generally “jamming” attacks, may violate certain laws or regulations, depending on the country. However, it is often difficult to identify the source of interference, as it can be small and easily hidden.

Wammer, short for WIFI jammer, brings together all the steps behind an extremely simple but effective user interface. To launch an attack, the user just has to press the “Activate the jammer” button. That’s all! A few seconds after the jamming begins, the user’s device will be the only one connected to the WiFi access point.

The problem is, (a) good Wi-Fi routers today use 5 GHz in addition to 2.4 GHz and there are many more 5 GHz channels available. Then there is (b) that if you obstruct a 2.4 GHz channel, the access point owner only needs to change the channel. It can turn into an escalating war where they switch channels and you switch channels on your phone. Non-stop. Until someone climbed with a baseball bat or worse.

As we said, we are very dependent on wireless networks. Wireless communication is like two people talking. One of them speaks and listens, and vice versa. What if a third person approaches them and starts screaming so loud that the other two cannot listen to each other? At first they will try to keep the conversation going, but soon they will realize that this is not possible and they will stop talking while waiting for the madman to shut up. This is what happens to many communication protocols. When they see that the channel is busy, they pull out. Thus, the exchange of messages between these devices is suspended. Even if they tried to communicate when the medium was not free, as some other protocols do, if the noise was too high, messages would not be received correctly on the other side and no communication would be possible. We call this wireless jamming.

The UAV market drives the development of jammers

In recent years, the drone market has grown rapidly, and with the large-scale development and production of manufacturers such as Daegu, Extreme Flight and Zero Control, the price of commercial drones has been accepted and experience has been gained. Use is good. The degree of widespread use is increasing.

At the same time, there are major hidden dangers to safety. However, many countries still have blank restrictions on drones, especially “Kurohi” drones. Approximately 90% of small aircraft flying in the air peep into the privacy of others, which poses a great danger to aerial surveillance and aerial safety.

The “Kurohi” accident occurred when the drone was injured. In the second half of 2016 alone, there were hundreds of accidents, such as stopping the aircraft or falling into a large-scale event. In the near future, an accident occurred on a flight in Canada, and an accident involving injuries occurred on the Ningbo Kurofi Highway. Faced with the unmanned aircraft control gap, we will take strong countermeasures to ensure air safety.

As a store specializing in various jamming devices, we sell professional UAV jammer. The facility can shield the position signals of all GNSS satellites, including GPS/GLONASS/Galileo.

The ISM 2.4G and ISM 5.8G frequency bands commonly used by humans and machines have the effects of forcibly shielding the drone, interrupting the graphic position and signal, and about/return/stop. .. Tokushin Tsushin voluntarily developed an unmanned aircraft jammer, which is powerful and can reach 1-5 kilometers (depending on different usage environments).

Our company can interfere with the positioning signals of GPS satellites and at the same time shield the 2.4 G and 5.8 G frequency interference that is usually used for drones. The interruption of position and signal forces the effect of approach/return/stop.

Legal notice on mobile jammers

The gsm signal jammer (JAMMER) is products capable of eliminating the cellular signal, in the range that goes from a few meters to about a kilometer, in some cases causing real inconvenience for anyone who happens to be within its range. Precisely for this reason they are products considered ILLEGAL in our country as in many others in the European community.

Response of the EU Commission to the EU Parliamentary Question E-2651/02 (Cell phone deactivation systems).

Reply from Commissioner Liikanen on behalf of the EU Commission (31 October 2002)

Research carried out by the Commission indicates that it is currently not allowed in the Member States to block the reception and transmission of GSM signals. Although France has adopted a law that prepares the ground for the use of inactivation systems, there are still no technical implementing regulations that allow the legal use of such devices (mobile phone jammer). The Commission is aware that inactivation systems are currently commercially available, in particular via the Internet.

12 Antennas Signal Jammer
Such products are illegal and Member States are therefore required to take measures in this regard pursuant to the provisions of Council Directive 89/336 / EEC of 3 May 1989 for the approximation of the laws of the Member States relating to electromagnetic compatibility or Directive 1999 / 5 / EC of the European Parliament and of the Council of 9 March 1999 concerning radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity, withdrawing them from the market. As the answer to Written Question P-2753/02 by Mr Caullery indicates, the Commission does not believe that inactivation is the right solution to the issue of inappropriate use of mobile phones. The Commission therefore does not intend to submit legislative proposals aimed at legalizing the use of inactivation systems.

In ITALY, those who use these products can interrupt a public service such as that of telephone transmission and therefore punishable by criminal law:

340 of the Criminal Code:
Interruption of an office or public service or a service of public need.
Anyone who, apart from the cases provided for by particular legal provisions, causes an interruption or disturbs the regularity of a public office or service or a service of public necessity, is punished with imprisonment for up to one year. The leaders, promoters or organizers are punished with imprisonment from one to five years.

617 of the Criminal Code:
Knowledge of illegal interruption or impediment of telegraphic or telephone communications or conversations.
Anyone who fraudulently becomes aware of a communication or conversation, telephone or telegraphic, between other people or in any case not directed to him, or interrupts or prevents them, is punished with imprisonment from six months to four years. Unless the fact constitutes a more serious crime, the same penalty applies to anyone who discloses, by any means of information to the public, in whole or in part, the content of the communications or conversations indicated in the first part of this article.
Crimes are punishable upon complaint by the injured party; however, the procedure is ex officio and the penalty is imprisonment from one to five years if the offense is committed to the detriment of a public official or a person in charge of a public service in the exercise or because of the functions or service, or by a public officer or a person in charge of a public service with abuse of powers or with violation of the duties inherent to the function or service, or by whoever exercises the profession of private investigator even illegally.
Article thus replaced by article 2 of l. 8/4/1974 n. 98.

617 bis:
Installation of equipment designed to intercept or prevent telegraphic or telephone communications or conversations.
Anyone who, outside the cases permitted by law, installs equipment, tools, parts of equipment or instruments in order to intercept or prevent telegraphic or telephone communications or conversations between other people is punished with imprisonment from one to four years.
The penalty is imprisonment from one to five years if the offense is committed to the detriment of a public official in the exercise or because of his functions or by a public official or a person in charge of a public service with abuse of powers or violation of duties inherent to the function or service or by whoever exercises the profession of private investigator even illegally.